DE602005021774D1 - TRUNKING AND PUSH TO TALK MECHANISMS FOR WIRELESS WCDMA COMMUNICATION - Google Patents

TRUNKING AND PUSH TO TALK MECHANISMS FOR WIRELESS WCDMA COMMUNICATION

Info

Publication number
DE602005021774D1
DE602005021774D1 DE602005021774T DE602005021774T DE602005021774D1 DE 602005021774 D1 DE602005021774 D1 DE 602005021774D1 DE 602005021774 T DE602005021774 T DE 602005021774T DE 602005021774 T DE602005021774 T DE 602005021774T DE 602005021774 D1 DE602005021774 D1 DE 602005021774D1
Authority
DE
Germany
Prior art keywords
push
trunking
wcdma communication
talk mechanisms
wireless
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602005021774T
Other languages
German (de)
Inventor
Mary Chion
Yonggang Fang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTEIT USA Inc
Original Assignee
ZTEIT USA Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTEIT USA Inc filed Critical ZTEIT USA Inc
Publication of DE602005021774D1 publication Critical patent/DE602005021774D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Abstract

Methods and systems for implementing trunking techniques in WCDMA systems for handling group calls and push-to-talk services.
DE602005021774T 2004-04-19 2005-04-19 TRUNKING AND PUSH TO TALK MECHANISMS FOR WIRELESS WCDMA COMMUNICATION Active DE602005021774D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56373104P 2004-04-19 2004-04-19
PCT/US2005/013303 WO2005101695A1 (en) 2004-04-19 2005-04-19 Trunking and push-to-talk mechanisms for wcdma wireless communications

Publications (1)

Publication Number Publication Date
DE602005021774D1 true DE602005021774D1 (en) 2010-07-22

Family

ID=35150314

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005021774T Active DE602005021774D1 (en) 2004-04-19 2005-04-19 TRUNKING AND PUSH TO TALK MECHANISMS FOR WIRELESS WCDMA COMMUNICATION

Country Status (7)

Country Link
US (1) US8335533B2 (en)
EP (1) EP1741206B1 (en)
AT (1) ATE471044T1 (en)
AU (1) AU2005234517B2 (en)
CA (1) CA2563696A1 (en)
DE (1) DE602005021774D1 (en)
WO (1) WO2005101695A1 (en)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7965693B2 (en) * 2002-05-28 2011-06-21 Zte (Usa) Inc. Interworking mechanism between wireless wide area network and wireless local area network
US7453837B2 (en) 2002-08-15 2008-11-18 Zteit Usa, Inc. Trunking system for CDMA wireless communication
KR100754658B1 (en) * 2004-03-12 2007-09-03 삼성전자주식회사 Method for operation of hybrid automatic repeat request in a broadband wireless communication system
DE602005021774D1 (en) 2004-04-19 2010-07-22 Zteit Usa Inc TRUNKING AND PUSH TO TALK MECHANISMS FOR WIRELESS WCDMA COMMUNICATION
EP1768428B1 (en) * 2004-06-02 2018-03-21 Yarnton Technologies LLC A system of group communication and a method of group call processing based on cdma 2000 high-speed packet data network
US7729303B2 (en) * 2004-06-30 2010-06-01 Zteit Usa, Inc. Global open trunking system for CDMA wireless communication
US20060089131A1 (en) * 2004-10-22 2006-04-27 Henry Huang Delay timers for managing internal state changes and messages in user equipment for real-time multimedia applications
US8379553B2 (en) * 2004-11-22 2013-02-19 Qualcomm Incorporated Method and apparatus for mitigating the impact of receiving unsolicited IP packets at a wireless device
US20060141961A1 (en) * 2004-12-23 2006-06-29 Schentrup Philip A Method and system for selective receiver shutdown
KR100735328B1 (en) * 2005-02-04 2007-07-04 삼성전자주식회사 Method for updating user data in ptt system and system therefor
US9172404B1 (en) * 2005-02-07 2015-10-27 Rf Micro Devices, Inc. Switch architecture for TDMA and FDD multiplexing
US20090157798A1 (en) 2005-02-17 2009-06-18 Infineon Technologies Ag Management of dynamic groups in a communication system
US7433716B2 (en) * 2005-03-10 2008-10-07 Nokia Corporation Communication apparatus
US7724743B2 (en) * 2005-03-31 2010-05-25 Qualcomm Incorporated System and method for distributing VoIP data packets in group communications amoung wireless telecommunication devices
US20060252441A1 (en) * 2005-05-03 2006-11-09 Harris John M System and method for programming an inactivity timer
JP2006352489A (en) * 2005-06-15 2006-12-28 Ntt Docomo Inc Mobile station, radio access network device, mobile communication system and intermittent reception method
US7609754B2 (en) * 2005-08-30 2009-10-27 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for received communication signal processing
US8570924B2 (en) * 2005-10-31 2013-10-29 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for activity detection in a telecommunication system
US7672250B2 (en) * 2005-11-16 2010-03-02 Via Telecom Co., Ltd. Multi-carrier wireless communication access terminal and data transmission method
DE602005023549D1 (en) 2005-11-25 2010-10-21 Zte Corp A control method for re-accessing a terminal to a trunking system after the terminal has left a group connection
CN100377606C (en) * 2005-12-08 2008-03-26 华为技术有限公司 Method for realizing business not relative to group calling and system therefor
CN100461901C (en) * 2005-12-12 2009-02-11 中兴通讯股份有限公司 Method for realizing CDMA traditional packet digital calling talk process
ES2377818T3 (en) * 2005-12-14 2012-04-02 Research In Motion Limited Method and apparatus for the control of radio resources directed to a user equipment in a UMTS network
US8254876B1 (en) * 2006-01-04 2012-08-28 Nextel Communications, Inc. Systems and methods for supporting dispatch communications
US20070214069A1 (en) * 2006-02-27 2007-09-13 Kalantri Sacchindrakumar G System for collecting billable information in a group communication system
WO2007098640A1 (en) * 2006-03-03 2007-09-07 Zte Corporation Method for assigning the carrier frequency in a trunked system
CN100463575C (en) * 2006-03-03 2009-02-18 中兴通讯股份有限公司 Method for combining traditional call with enhanced call in CDMA digital packet
US8295243B2 (en) 2006-08-21 2012-10-23 Qualcomm Incorporated Method and apparatus for random access in an orthogonal multiple-access communication system
BRPI0718424A2 (en) * 2006-10-24 2013-11-12 Lg Electronics Inc RESOURCE ALLOCATION PROCEDURE AND UNSCRIPTED RADIO ACCESS (NSRA)
US8014359B2 (en) 2006-10-27 2011-09-06 Interdigital Technology Corporation Method and apparatus for assigning radio resources and controlling transmission parameters on a random access channel
US8098639B2 (en) * 2007-01-02 2012-01-17 Motorola Solutions, Inc. System and method for managing communication channel assignments for different types of communication units in a communication system
KR101387480B1 (en) * 2007-01-11 2014-04-22 엘지전자 주식회사 method for applying scheduling mechanism based on the communication condition and tranceiver supporting the same
US8233930B1 (en) * 2007-01-16 2012-07-31 Sprint Spectrum L.P. Dual-channel conferencing with connection-based floor control
US20080298293A1 (en) * 2007-05-29 2008-12-04 Motorola, Inc. Peer-to-peer group call support in a communication system
SE536405C2 (en) 2008-01-07 2013-10-08 3M Svenska Ab Method and device for common listening channel for communication within the DECT standard
US8155063B2 (en) * 2008-04-28 2012-04-10 Apple Inc. Apparatus and methods for transmission and reception of data in multi-antenna systems
US8401584B2 (en) * 2008-06-17 2013-03-19 Motorola Solutions, Inc. Dynamic group prioritization in communication networks
US20100254334A1 (en) * 2009-04-06 2010-10-07 Qualcomm Incorporated Setting up a communication session within a wireless communications system
MX2012005871A (en) 2009-11-23 2012-11-30 Research In Motion Ltd Method and apparatus for state/mode transitioning.
US8670788B1 (en) * 2010-01-20 2014-03-11 Sprint Spectrum L.P. Dynamic paging concatenation
CN101815255B (en) * 2010-04-28 2014-03-12 中兴通讯股份有限公司 Query method and system for group scheduling area information
US8917610B2 (en) * 2010-07-12 2014-12-23 International Business Machines Corporation Detecting intermittent network link failures
US8538396B2 (en) * 2010-09-02 2013-09-17 Mitel Networks Corporaton Wireless extensions for a conference unit and methods thereof
CN102413524B (en) 2011-11-09 2014-10-08 华为技术有限公司 Communication method of sharing one cell, base station controller, base station and communication system thereof
US8725080B2 (en) * 2011-12-29 2014-05-13 Motorola Solutions, Inc. Method and apparatus for transmission in a trunked radio communication system
CN102572722B (en) * 2012-01-19 2015-07-15 大唐移动通信设备有限公司 Message transmission method and equipment based on cluster users
KR101360835B1 (en) * 2012-01-31 2014-02-12 성균관대학교산학협력단 A method for offering handover of mobile terminal
EP2856655B1 (en) * 2012-05-24 2018-05-02 Hughes Network Systems, LLC System and method for efficient use of radio resources for push-to-talk services in mobile wireless communications systems
CN103686619B (en) * 2012-09-17 2017-02-01 华为技术有限公司 Quick cluster business establishment method and related equipment and system
CN104080057B (en) * 2013-03-29 2018-09-11 北京信威通信技术股份有限公司 A kind of method of control terminal group call right
US9402163B2 (en) 2013-07-19 2016-07-26 Qualcomm Incorporated In-building location security and privacy
US9042929B2 (en) * 2013-08-20 2015-05-26 Motorola Solutions, Inc. Trunked and broadband radio communication method and system
US10349225B2 (en) * 2013-08-27 2019-07-09 Verizon Patent And Licensing Inc. Private multicast networks
US9398411B2 (en) * 2014-09-05 2016-07-19 Qualcomm Incorporated Dispatch console client functionality
CN110859013B (en) * 2018-08-22 2022-03-29 华为技术有限公司 Transmission control method and device
US10645541B2 (en) * 2018-09-26 2020-05-05 Motorola Solutions, Inc. Method and system to extend connection time of a talkgroup conversation based on historical talkgroup statistics
CN111107499B (en) * 2018-10-25 2021-11-12 成都鼎桥通信技术有限公司 TCCH scheduling method and device based on B-Trunc
CN113438609B (en) * 2021-08-27 2021-11-19 深圳市晨讯物联科技有限公司 Method, system, device and storage medium for scheduling communication with integration of width and width

Family Cites Families (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159701A (en) 1989-03-31 1992-10-27 E. F. Johnson Company Method and apparatus for a distributive wide area network for a land mobile transmission trunked communication system
GB9411357D0 (en) 1994-06-07 1994-07-27 Newbridge Networks Corp Data transmission system
US5711011A (en) 1996-06-04 1998-01-20 Motorola, Inc. Method for providing voice mail service in a dispatch radio communication system and corresponding dispatch system
US5867491A (en) 1996-06-30 1999-02-02 Motorola, Inc. Packet voting server and associated method for performing voting services on multiple radio channels simultaneously
US6128301A (en) 1996-11-07 2000-10-03 Nortel Networks Limited Architecture for distribution of voice over ATM networks
US6249681B1 (en) * 1997-04-01 2001-06-19 Nokia Mobile Phones Ltd. Method and apparatus for packet data call re-establishment in a telecommunications system
US6178327B1 (en) 1998-05-08 2001-01-23 Motorola, Inc. Method and apparatus for providing fault tolerance in frequency reuse wireless communication systems
US6263368B1 (en) 1997-06-19 2001-07-17 Sun Microsystems, Inc. Network load balancing for multi-computer server by counting message packets to/from multi-computer server
US6049528A (en) 1997-06-30 2000-04-11 Sun Microsystems, Inc. Trunking ethernet-compatible networks
US6373829B1 (en) 1998-04-23 2002-04-16 Motorola, Inc. Method and apparatus for group calls in a wireless CDMA communication system using outbound traffic channels for individual group members
US6131012A (en) 1998-05-26 2000-10-10 Nera Wireless Broadband Access As Method and system for a micro-channel bank for providing voice, data, and multimedia services in a wireless local loop system
US6115370A (en) 1998-05-26 2000-09-05 Nera Wireless Broadband Access As Method and system for protocols for providing voice, data, and multimedia services in a wireless local loop system
US6421335B1 (en) 1998-10-26 2002-07-16 Nokia Telecommunications, Oy CDMA communication system and method using priority-based SIMA quality of service class
US6243581B1 (en) 1998-12-11 2001-06-05 Nortel Networks Limited Method and system for seamless roaming between wireless communication networks with a mobile terminal
US6628946B1 (en) * 1999-05-20 2003-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for broadcasting system information in a cellular communications network
US6178166B1 (en) * 1999-05-28 2001-01-23 Motorola, Inc. Method and apparatus for group calls in a wireless CDMA communication system
US6292671B1 (en) 1999-08-03 2001-09-18 Sprint Spectrum L.P. Dispatch mode in code division multiple access systems
US6510315B1 (en) 1999-10-05 2003-01-21 Intel Corporation Systems and methods for maintaining the voice path connection during caller disconnect of an emergency 911 call
US6138011A (en) 1999-10-15 2000-10-24 Motorola, Inc. Method and apparatus for providing dispatch service to an existing telephone network
FI110352B (en) * 2000-02-24 2002-12-31 Nokia Corp Method and arrangement to optimize the re-establishment of connections in a cellular radio system that supports real-time and non-real-time communications
US6882856B1 (en) 2000-04-20 2005-04-19 Motorola, Inc. Method for dynamically configuring group calls in a radio system
US6553234B1 (en) 2000-05-01 2003-04-22 Alcatel Canada, Inc. Method of frequency reuse in a fixed access wireless network
US7343163B1 (en) 2000-06-19 2008-03-11 Motorola, Inc. Adaptive channel access scheme
US7487112B2 (en) 2000-06-29 2009-02-03 Barnes Jr Melvin L System, method, and computer program product for providing location based services and mobile e-commerce
US6650905B1 (en) * 2000-06-30 2003-11-18 Nokia Mobile Phones, Ltd. Universal mobile telecommunications system (UMTS) terrestrial radio access (UTRA) frequency division duplex (FDD) downlink shared channel (DSCH) power control in soft handover
JP2002158435A (en) * 2000-11-16 2002-05-31 Yazaki Corp Circuit unit and its manufacturing method
US7039027B2 (en) 2000-12-28 2006-05-02 Symbol Technologies, Inc. Automatic and seamless vertical roaming between wireless local area network (WLAN) and wireless wide area network (WWAN) while maintaining an active voice or streaming data connection: systems, methods and program products
US6538606B2 (en) 2001-01-26 2003-03-25 Dell Products L.P. Antenna module interface extension
US6721834B2 (en) 2001-02-09 2004-04-13 Lucent Technologies Inc. Rate adaptation in a wireless communication system
WO2002080401A2 (en) * 2001-03-28 2002-10-10 Qualcomm Incorporated Power control for point-to-multipoint services provided in communication systems
US6788946B2 (en) * 2001-04-12 2004-09-07 Qualcomm Inc Systems and methods for delivering information within a group communications system
US6738617B2 (en) 2001-05-15 2004-05-18 Qualcomm Incorporated Controller for reducing latency in a group dormancy-wakeup process in a group communication network
FI20011259A (en) 2001-05-28 2002-11-29 Nokia Corp Mediation in a packet data network of parameters for establishing a connection
CN1547861A (en) * 2001-06-27 2004-11-17 ���˹���Ѷ��� Communication of control information in wireless communication systems
US7076248B2 (en) 2001-09-10 2006-07-11 Telefonaktiebolaget Lm Ericsson (Publ) Recovery of mobile station(s) in connected mode upon RNC failure
US20030050067A1 (en) 2001-09-10 2003-03-13 Jack Rozmaryn Wireless systems frequency reuse planning using simulated annealing
KR100437088B1 (en) 2001-10-29 2004-06-23 삼성전자주식회사 Method for controlling operation of mobile terminal capable of high data rate service
US6862453B2 (en) 2001-12-31 2005-03-01 Samsung Electronics Co., Ltd. System and method for distributed call processing using a distributed trunk idle list
US6947752B2 (en) 2001-12-31 2005-09-20 Samsung Electronics Co., Ltd. System and method for distributed call processing using load sharing groups
US6917819B2 (en) 2001-12-31 2005-07-12 Samsung Electronics Co., Ltd. System and method for providing a subscriber database using group services in a telecommunication system
US20030133421A1 (en) 2002-01-17 2003-07-17 Rangamani Sundar Method, system and apparatus for providing WWAN services to a mobile station serviced by a WLAN
US20030134650A1 (en) 2002-01-17 2003-07-17 Rangamani Sundar Method, system and apparatus for internetworking a mobile station to operate in a WWAN environment and in a WLAN environment with PBX services
AU2002219235A1 (en) * 2002-01-04 2003-07-15 Nokia Corporation Method and device for downlink packet access signalling for time division duplex (tdd) mode of a wireless communication system
US6898436B2 (en) 2002-02-14 2005-05-24 Qualcomm Incorporated Communication device for joining a user to a group call in a group communication network
US7480270B2 (en) * 2002-05-10 2009-01-20 Qualcomm, Incorporated Method and apparatus for a reverse link supplemental channel scheduling
WO2003101025A2 (en) 2002-05-28 2003-12-04 Zte San Diego, Inc. Interworking mechanism between cdma2000 and wlan
KR20030097373A (en) * 2002-06-20 2003-12-31 삼성전자주식회사 Apparatus for paging of multimedia broadcast/multicast service in mobile communication system and method therof
WO2004017525A2 (en) 2002-08-15 2004-02-26 Zteit Usa, Inc. Trunking system for cdma wireless communication
US7453837B2 (en) * 2002-08-15 2008-11-18 Zteit Usa, Inc. Trunking system for CDMA wireless communication
US7623483B2 (en) * 2002-09-23 2009-11-24 Lg Electronics, Inc. Radio communication scheme for providing multimedia broadcast and multicast services (MBMS)
US20040100940A1 (en) * 2002-11-27 2004-05-27 Nokia Corporation Enhanced PDP context management using radio parameter information elements added to messages
US20040156340A1 (en) * 2003-02-10 2004-08-12 Telefonaktiebolaget L M Ericsson (Pub1) Method, system and packet data access node for prepaid quota provision
IL154459A0 (en) 2003-02-13 2003-09-17 Witcom Ltd Wireless network with intensive frequency reuse
US8526963B2 (en) 2003-10-30 2013-09-03 Qualcomm Incorporated Restrictive reuse for a wireless communication system
WO2005055501A2 (en) * 2003-12-01 2005-06-16 Interdigital Technology Corporation Method and apparatus for notifying unavailability of broadcast/multicast services
US7474895B1 (en) 2004-03-04 2009-01-06 Zte (Usa) Inc. Frequency reuse in wireless communication networks
US8077653B2 (en) * 2004-03-25 2011-12-13 Nokia Corporation Communication method, mobile terminal, and computer program
DE602005021774D1 (en) 2004-04-19 2010-07-22 Zteit Usa Inc TRUNKING AND PUSH TO TALK MECHANISMS FOR WIRELESS WCDMA COMMUNICATION
US7729303B2 (en) 2004-06-30 2010-06-01 Zteit Usa, Inc. Global open trunking system for CDMA wireless communication
US7290153B2 (en) 2004-11-08 2007-10-30 Via Technologies, Inc. System, method, and apparatus for reducing power consumption in a microprocessor

Also Published As

Publication number Publication date
AU2005234517B2 (en) 2009-10-22
EP1741206B1 (en) 2010-06-09
ATE471044T1 (en) 2010-06-15
US8335533B2 (en) 2012-12-18
AU2005234517A1 (en) 2005-10-27
EP1741206A1 (en) 2007-01-10
WO2005101695A1 (en) 2005-10-27
EP1741206A4 (en) 2009-03-25
US20060003784A1 (en) 2006-01-05
CA2563696A1 (en) 2005-10-27

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